Malfunction Cinema Control board or SMPS board.

Put the projector in Stand-By mode, remove the Lamp House and the Lamp Cathode Fan assembly to access the Signal Backplane connections with the SMPS wires (reference 6 image). Then, measure on the Signal Backplane the ++12V voltage on pin 1, 2 or 3 of the connector with the black wires coming from the SMPS board. See image.

If the measured voltage is about 12V then replace the Cinema Control board. See service manual chapter "Replacement of the Cinema Controller". Otherwise replace the SMPS board. See service manual chapter "Switch Mode Power Supply (SMPS)".

Note: To remove the Light Source, see service manual chapter "Laser Phosphor Light Source". To remove the Anode Fan assembly see service manual chapter "Replacement of the Anode Fan".

Note: The projector must be in Stand-By mode otherwise no voltages are generated by the SMPS board.